Morpheme
Mest(e)r [Mester, Mestr]
Type
bound base
Denotation
of months
Etymology
Latin mēnsis + -tris
Evidence
semester, semesters, semestral, semestrial, trimester, trimesters, trimestral, trimestrial
See Also
Mens, Mon, Moon, Lun(e) [Lune, Lun]